Perhaps you should try some spelling variations:
welfare administration » revenue administration
2f administration » csf administration, trf administration, 8 administration
22great britain » xgreat britain, zgreat britain, great brittain
et colonies » her colonies, des colonies, les colonies
p colonies » _ colonies, her colonies, des colonies

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %((22great britain) OR (great britain)) %((p colonies) OR (et colonies)) %((2f administration) OR (((self administration) OR (welfare administration))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22great britain) or (great britain)) %((p colonies) or (et colonies)) %((2f administration) or (((self administration) OR (welfare administration))))%22".
• Adding a wildcard symbol may retrieve word variants: %((22great britain) or (great britain)) %((p colonies) or (et colonies)) %((2f administration) or (((self administration) OR (welfare administration))))%22*.